Here is a simple wall mount for a steering wheel. Perfect if you have a quick-release wheel in your car or on a sim rig at home.

There are 3 models.

All can be printed support-less, I chose to mount mine with two M3 screws and it holds my wheel with quick release (1.5kg) without issue. I wouldn't trust the two 3m Comand Strips to hold that weight but let me know if you do test it.
 

If you have any ideas on additions I can make to this model please do let me know.